Derrick-hoist.



B. G. COPE.

DBRRlK HOIST. vAPPLIQATIQN FILED JAN.2s,1-9oe'.

Patented Nov. 1o, 1908i /NVEHTOR W/TA-/YESES Wwf/MM 'IBMV fw VWM H B. G', COPE. DBERIGK HOIST. APPLICATION FILED JAN. 8-, 1908.

Patented Nov. 10, 1908.

2 sums- SHEET z.-

- WJTNESSES' IH VEN T01? ATTHNE'Y UNITED srn'rns PATENT BURTON G. COPE, OF ORRVILLE, OHIO, ASSIGNOR TO THE OYOLONE DRILLCOMPANY, OF ORRVILLE, OHIO, A CORPORATION OF OHIO.

DERRICK-HOIST.

Specification of Letters Patent.

Patented Nov. 10, 1908.

To all whom it may concern.'

Be it known that I, BURTON G. COPE, a ends an eyelet, b5.

citizen of the United States, residing at Orrville, in the county of Wayne and State of Ohio, have invented new and useful Improvements in Derrick-Hoists, of which the following is a specification.

This invention relates to new and useful improvements in derrick hoisting mechanisms, and especially to those mechanisms which are applied to drilling or other machilnes mounted on trucks and having a derric r.

Heretofore a great deal of inconvenience has been experienced in the hoisting of the derricks of portable machinery and a great amount of power has been required. Also the position and kind of mechanism used has been disadvantageous to the good operation of the machinery, as it has been so placed and operated as not to permit of the best des1 n.

gThe obj ect of this invention is to rovide such a device as will easily and quick y hoist the derrick with the expenditure of very little power; and also to have the device so simple in construction and occupying such a position, relative to the other mechanism that there will be no interference with the operation or design.

The particular embodiment of my invention selected for illustration is shown in the following drawings, in which:

Figure 1, is a side elevation of the device as a plied to the trucks of portable drilling mac mery. Fig. 2, is a perspective of the shoe and its means of attachment to the cable with the derrick brace in position, with parts broken away. Fig. 3, is a top plan view of the device as applied to the trucks of a portable machine.

Referring to the drawings, A, is the derrick. Members al, a2, are firmly fastened to the frame, O, supported by the trucks, and to each other, and form a triangular one paneled truss. At the top of membersal, a2, where they join, is pivoted the derrick, A, at some convenient point near its lower end. Independent braces, as, are ivoted to the derrick near the top. A pu ey, a5, is suitably journaled near the top of the derrick. The lower ends of members, a3, are adapted to rest in sockets in the shoes, l), which contact with the ground and which are fastened together by a strip, a4, placed high enough to clear the ground. Each shoe has at one of its A bail, b1, has an eyelet, be, adapted to receive the hoisting cable, b2.

The drum B, is rigidly fastened to shaft, b3, said shaft being suitably journaled in a bearing attached to the frame, O. Attached to shaft, b3, in any convenient manner is a crank and handle, b4, or other means of rotation. The cable b2, which in the drawing is wound around the drum, connects to bail, b1, and may or may not operate over an idler, c, between the end of the frame, O, and the drum.

The operation of this device is as follows: Assuming that the derrick is lowered and is to be hoisted, and that the braces are free at their lower ends. The shoes and attached parts are then laid on the ground; the brace ends placed in the shoe sockets, and the cable connected with the drum, B, which is rotated by hand in a direction to wind up the cable, b2, and the lower ends of members, 0.3, are slid along the ground on shoes, b, toward the end of the frame, O. While this operation is going on, the angle between the members a, and a3, diminishes and the lower ends of said members approach the adjacent ends of the frame, O. After a sufficient rotation of the drum, B, the lower end of member, a, comes in contact with frame, C, and may if desired be fastened to said frame. When the above has been accomplished the lower ends of the braces, a3, are sufficiently close to the end of frame O, they may be lifted and set on the frame, O, to which they may or may not be fastened. To lower the derrick the cable must be unwound from the drum and the friction between the ground and shoes and the parts must be overcome, which would be aided by the weight of the derrick to such a degree that one man could easily perform the operation, in handling a drill derrick of ordinary size. When the shoes and their connections are not in use, not being connected to any other portion of the drill, the whole part is put out of the way.

What I claim as new and desire to secure by Letters Patent of the United States, is

1. A derrick hoisting device, consisting of a combination of derrick braces pivoted to a derrick, which is pivoted to a truck frame, shoes adapted to receive the loose ends of said braces and means for drawing said shoes towards said truck.

2. A derrick hoisting device, comprising shoes-adapted to receive and hold the derrick 3. A derrick hoisting device having a drum` adapted to wind up afleXible connection attached to the derrick, said drum journaled to the frame of a truck adapted to support any type of portable machinery and to which the derrick is attached, and said flexible connection attached to the derrick braces by means of a rigid connection attached to shoes contacting with the ground and attached to the derrick roper.

4. A derrick hoisting device adapted to raise a derrick composed of the derrick proper pivoted to a frame, and braces pivoted to the derrick near the tops of both said parts, shoes adapted to rest on the ground and connections from said shoes to a drum, said drum and means for rotating said drum.

5. In combination with a derrick hoisting device, shoes comprising a channel ada ted to loosely receive and hold the ends 0 the loose members of the derrick7 and a cross member by which opposite shoes are heldvtof. gether.

6. In combination with a derrick composed of two parts pivoted together; a hoist mechanism consisting of flexible and rigid connections attached to the lower end o'l' the loose member of the derrick, shoes comprising a channel adapted to loosely receive the ends of the loose members of the derrick, said shoes having means for the attachment of hoisting connections, and a cross connection between opposite shoes.

7. Shoes comprising a channel adapted to loosely receive the ends of the loose members of the derrick and means for attachment for hoisting connections and cross member.

ln testimony whereof l have hereunto set my hand in presence of two subscribing witnesses.

BURTON Gr. COPE.

Witnesses:

A. J. CUsTER, T. M. KRIEGER. 

